Mindfulness allows you to face the past with courage, whether it is scarred with pain or caressed with joy, and it gently holds you in the safe haven of the present without allowing you to become overwhelmed with what may or may not be waiting in the future.
You might be tempted to avoid the messiness of daily living for the tranquility of stillness and peacefulness. This of course would be an attachment to stillness, and like any strong attachment, it leads to delusion. It arrests development and short-circuits the cultivation of wisdom.
Mindfulness meditation doesn't change life. Life remains as fragile and unpredictable as ever. Meditation changes the heart's capacity to accept life as it is. It teaches the heart to be more accommodating, not by beating it into submission, but by making it clear that accommodation is a gratifying choice.